Features: brand new and high quality Made of high quality aluminium alloy and copper, durable made for safety use. Easy to use kit for a professional installation. Used to isolate and secure the electrical system, can stand alone or be locked together with other switch. Eliminate any power draw from the battery when vehicle or boat is not in use, disconnects the battery safely. Universal used for car, vehicle, Rv and boat, also electrical equipment's switch. Specifications: Material: Aluminum Alloy+Copper Color: Random Color Product Gross Weight: 458G Packing Method: Neutral carton Rated Current: 300A Instantaneous Current: 1000A Size: Approx. 3.54x2.76inch(9x7cm) Scope of Application: RV, yacht, truck, truck, automobile Product Function: Prevent leakage, protect power, and safely disconnect the battery Package Includes: 1x Battery Switch note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.